diff options
| author | Nicholas Mc Guire <hofrat@osadl.org> | 2017-01-16 14:58:33 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-01-31 14:54:47 +0100 |
| commit | 0df03379c541ec027c94b025f2ef259f243eeb58 (patch) | |
| tree | c36b4be4b089f79ca66a31fc6ed1488bf7ad704d /drivers/media/i2c/ov9650.c | |
| parent | [media] v4l: mt9v032: Remove unneeded gpiod NULL check (diff) | |
| download | linux-0df03379c541ec027c94b025f2ef259f243eeb58.tar.xz linux-0df03379c541ec027c94b025f2ef259f243eeb58.zip | |
[media] ov9650: use msleep() for uncritical long delay
ulseep_range() uses hrtimers and provides no advantage over msleep()
for larger delays. Fix up the 25ms delays here to use msleep() and
reduce the load on the hrtimer subsystem.
Link: http://lkml.org/lkml/2017/1/11/377
Reviwed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/i2c/ov9650.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/i2c/ov9650.c b/drivers/media/i2c/ov9650.c index 502c72238a4a..2de2fbb13b85 100644 --- a/drivers/media/i2c/ov9650.c +++ b/drivers/media/i2c/ov9650.c @@ -522,7 +522,7 @@ static void __ov965x_set_power(struct ov965x *ov965x, int on) if (on) { ov965x_gpio_set(ov965x->gpios[GPIO_PWDN], 0); ov965x_gpio_set(ov965x->gpios[GPIO_RST], 0); - usleep_range(25000, 26000); + msleep(25); } else { ov965x_gpio_set(ov965x->gpios[GPIO_RST], 1); ov965x_gpio_set(ov965x->gpios[GPIO_PWDN], 1); @@ -1438,7 +1438,7 @@ static int ov965x_detect_sensor(struct v4l2_subdev *sd) mutex_lock(&ov965x->lock); __ov965x_set_power(ov965x, 1); - usleep_range(25000, 26000); + msleep(25); /* Check sensor revision */ ret = ov965x_read(client, REG_PID, &pid); |